CN111836003A - SDN-based intelligent media stream link selection method and device - Google Patents
SDN-based intelligent media stream link selection method and device Download PDFInfo
- Publication number
- CN111836003A CN111836003A CN201910303994.7A CN201910303994A CN111836003A CN 111836003 A CN111836003 A CN 111836003A CN 201910303994 A CN201910303994 A CN 201910303994A CN 111836003 A CN111836003 A CN 111836003A
- Authority
- CN
- China
- Prior art keywords
- link
- video monitoring
- management server
- monitoring management
- level video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/56—Routing software
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
Abstract
The invention discloses a media stream link intelligent selection method and a device based on an SDN.A SDN is deployed between every two video monitoring management server nodes, the video monitoring management servers need to pass through the SDN when establishing a media stream negotiation signaling, the video monitoring management servers carry server key information in response information of the signaling negotiation, the SDN acquires the information from a response signaling message, judges the quality of a media stream link according to the information and automatically arranges the priority, so that other smooth links are intelligently selected when the media stream link is failed to be established, and the effect of ensuring the successful establishment of the media stream link as far as possible under the condition that a user cannot perceive the media stream link is achieved.
Description
Technical Field
The invention belongs to the technical field of media stream forwarding, and particularly relates to a media stream link intelligent selection method and device based on an SDN (software defined network).
Background
Video monitoring is an important component of a safety precaution system, and is widely applied to many occasions due to intuition, accuracy, timeliness and rich information content. In recent years, with the rapid development of computers, networks, image processing and transmission technologies, the popularization trend of video monitoring is more and more obvious. With the development of the video surveillance industry, a media stream link is no longer a single link in the past (for example, a camera can only be shared to an upper domain through one lower domain, and a camera can be slowly developed to be shared to the same upper domain through a plurality of lower domains, so that a media stream requesting a certain camera in the upper domain can have a plurality of links). The de-singulation of the media stream link promotes the video monitoring to need the technology of realizing the multi-link mutual backup of the media stream, so as to ensure that the media stream link is as smooth as possible and meet the requirements of people on high-reliability media streams.
Based on this, how to implement mutual backup of media stream links, and how to implement methods for selecting and switching media stream links need to be considered. Currently, the media stream link selection can be realized by a manual selection mode. Such as: the method comprises the following steps that an upper domain A, a middle domain B and a lower domain C exist, cameras S and S are shared to the A through the B, and the S is also shared to the A through the C; and when the A senses that the signaling of the live broadcast returned by the B is wrong, the user reselects the link A + C + S, and the media stream is established through a new link.
Although the problem of media stream link selection can be solved by manually switching the link, the user is undoubtedly required to operate once more, and the user can have at least one failed experience; in addition, the first failure is only sensed by the user after the whole signaling flow finishes interaction and returns to the highest level domain, so that delay is caused to the establishment of the media stream; moreover, when the user may select a failed link next time, because there are a large number of camera sites on one platform, it is not practical to remember which link of which site is clear by the client, and the user experience is poor.
Disclosure of Invention
The invention aims to provide a media stream link intelligent selection method and device based on an SDN (software defined network), which can intelligently select other unobstructed links when the establishment of a media stream link fails, and achieve the technical effect of ensuring the successful establishment of the media stream link as far as possible under the condition that a user cannot perceive the link.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an SDN-based intelligent media streaming link selection method is used for intelligent selection of media streaming links in a video monitoring system, the video monitoring system comprises a first-level video monitoring management server and a second-level video monitoring management server, an SDN device is arranged between the first-level video monitoring management server and the second-level video monitoring management server, and the SDN-based intelligent media streaming link selection method is applied to the SDN device and comprises the following steps:
receiving link information between a first-level video monitoring management server and a second-level video monitoring management server;
receiving a negotiation signaling initiated by a first-level video monitoring management server to establish a media stream link request, selecting a link with a high priority according to the priority of each link in link information, and sending the negotiation signaling to a corresponding second-level video monitoring management server through the selected link;
and receiving a response signaling carrying the key information of the server by the second-level video monitoring management server, and updating the priority of the link corresponding to the second-level video monitoring management server of the server.
Furthermore, the priority of each link is initially set by the first-level video monitoring management server. Or, the priority of each link is initially set by the SDN device.
Optionally, the receiving a response signaling that the second-level video monitoring management server carries the key information of the server, and updating the priority of the link corresponding to the second-level video monitoring management server includes:
analyzing the key information of the server carried in the response signaling of the second-level video monitoring management server;
and calculating and recording the priority of the link corresponding to the second-level video monitoring management server according to the key information and by combining whether the negotiation signaling is successful and the response time.
Further, whether the negotiation signaling is successful or not and response time are determined, and the sum of the weight ratios in the priority of the corresponding link of the second-level video monitoring management server is calculated to be larger than a set threshold value.
The invention also provides a media stream link intelligent selection device based on SDN, which is used for intelligent selection of a media stream link in a video monitoring system, wherein the video monitoring system comprises a first-level video monitoring management server and a second-level video monitoring management server, an SDN device is arranged between the first-level video monitoring management server and the second-level video monitoring management server, and the media stream link intelligent selection device based on SDN is applied to the SDN device and comprises:
the link information receiving module is used for receiving link information between the first-level video monitoring management server and the second-level video monitoring management server;
the link selection module is used for receiving a negotiation signaling initiated by the first-level video monitoring management server for establishing a media stream link request, selecting a link with a high priority according to the priority of each link in the link information, and sending the negotiation signaling to the corresponding second-level video monitoring management server through the selected link;
and the link priority updating module is used for receiving a response signaling carrying the key information of the server by the second-level video monitoring management server and updating the priority of the link corresponding to the second-level video monitoring management server of the server.
Furthermore, the priority of each link is initially set by the first-level video monitoring management server. Alternatively, the priority of each link is initially set by the SDN device.
Optionally, the link priority updating module, when receiving a response signaling that the second-level video monitoring management server carries key information of the server and updating the priority of the link corresponding to the second-level video monitoring management server, executes the following operations:
analyzing the key information of the server carried in the response signaling of the second-level video monitoring management server;
and calculating and recording the priority of the link corresponding to the second-level video monitoring management server according to the key information and by combining whether the negotiation signaling is successful and the response time.
Further, whether the negotiation signaling is successful or not and response time are determined, and the sum of the weight ratios in the priority of the corresponding link of the second-level video monitoring management server is calculated to be larger than a set threshold value.
The invention provides a media stream link intelligent selection method and device based on an SDN (software defined network). SDN is deployed between every two video monitoring management server nodes, the video monitoring management servers need to pass through the SDN when establishing a media stream negotiation signaling, the video monitoring management servers carry server key information in response information of the signaling negotiation, the SDN acquires the information from a response signaling message, judges the quality of a media stream link according to the information and automatically arranges the priority, so that other smooth links can be intelligently selected when the media stream link is failed to be established, and the effect of ensuring the successful establishment of the media stream link as far as possible under the condition that a user cannot perceive the media stream link is achieved.
Drawings
FIG. 1 is a schematic diagram of a video surveillance network according to an embodiment of the present invention;
fig. 2 is a flowchart of an SDN-based intelligent media stream link selection method according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The media stream link intelligent selection method and device based on the SDN can be applied to the application environment shown in FIG. 1. In a video surveillance system, often hierarchical, fig. 1 shows a specific embodiment with a video surveillance management server a in the upper domain, video surveillance management servers B and D in the middle domain, and video surveillance management servers C and E in the lower domain, with front-end equipment cameras connected to the video surveillance management servers C and E.
As shown in fig. 1, SDN devices are disposed between management servers of each level domain in the video monitoring system, an SDN device SDN1 is disposed between the upper level domain video monitoring management server a and the middle level domain video monitoring management server B, D, an SDN device SDN2 is disposed between the middle level domain video monitoring management server B and the lower level domain video monitoring management server C, E, and an SDN device SDN3 is disposed between the middle level domain video monitoring management server D and the lower level domain video monitoring management server C, E. The lower domain video monitoring management server C, E may have direct access to the cameras, and may not have SDN devices.
In one embodiment, as shown in fig. 2, an SDN-based media stream link intelligent selection method is provided, and is used for intelligent selection of a media stream link in a video monitoring system, where the video monitoring system includes a first-level video monitoring management server and a second-level video monitoring management server, and an SDN device is disposed between the first-level video monitoring management server and the second-level video monitoring management server. The embodiment of the invention provides a media stream link intelligent selection method based on an SDN, which is applied to an SDN device and comprises the following steps:
receiving link information between a first-level video monitoring management server and a second-level video monitoring management server;
receiving a negotiation signaling initiated by a first-level video monitoring management server to establish a media stream link request, selecting a link with a high priority according to the priority of each link in link information, and sending the negotiation signaling to a corresponding second-level video monitoring management server through the selected link;
and receiving a response signaling carrying the key information of the server by the second-level video monitoring management server, and updating the priority of the link corresponding to the second-level video monitoring management server.
It should be noted that, in an application environment of a multi-level domain, a first-level video monitoring management server and a second-level video monitoring management server represent a relationship between upper and lower levels, for example, in fig. 1, between a video monitoring management server a and a middle-level domain video monitoring management server B, the video monitoring management server a is a first-level video monitoring management server, and the video monitoring management server B is a second-level video monitoring management server; between the middle-level domain video monitoring management server B and the lower-level domain video monitoring management server C, the video monitoring management server B is a first-level video monitoring management server, and the video monitoring management server C is a second-level video monitoring management server. And so on, and will not be described in detail here.
The following is a detailed description of the embodiment of fig. 1.
The specific design flow of the invention is as follows:
in the initial stage, the video surveillance management server a will publish the link information of AB/AD to SDN1 and mark the link priority, and SDN1 will use the information as the basis for initial link selection. It should be noted that, in the initial stage, the link priority may be set by the video monitoring management server a, or may be set by the SDN device itself as a default priority.
Similarly, the video monitoring management server B distributes the link information of the C/E to the SDN 2; video surveillance management server D will publish the link information for C/E to SDN3, both marking link priority.
After video surveillance management server a initiates a request signaling for establishing a live media stream link to a front-end device camera, a sends a negotiation signaling to SDN 1. After receiving the negotiation signaling, SDN1 selects an optimal path according to the priority of the link, where the link may be an AB or an AD. If the initiation is the first time, the priority is that the video surveillance management server a informs SDN1 or a default priority set by SDN1, and the second time is started, SDN1 selects itself according to the priority.
Assuming that the path selected by SDN1 is AB, SDN1 sends negotiation signaling to video monitoring management server B, and B sends negotiation signaling to SDN2, and SDN2 selects an optimal path, which may be C or E, according to link priority.
Assuming that SDN2 selects path C, SDN2 sends negotiation signaling to video surveillance management server C, which sends negotiation signaling to front-end device cameras.
After the front-end device camera processes the negotiation signaling, a response signaling is returned to the video monitoring management server C, the video monitoring management server C needs to carry some key information (average load of the server C, CPU usage of the server C, IO usage of the server C, network card traffic of the server C, bandwidth usage of the server C, and network card model of the server C < million/giga/tera >) to the SDN2 when returning the response signaling, and the SDN2 calculates link priority of the path C according to the key information and records the link priority.
In an embodiment, the SDN device further calculates and records the priority of the corresponding link according to the key information and in combination with whether the negotiation signaling is successful and the response time.
That is, the receiving of the response signaling that the second-level video monitoring management server carries the key information of the server and updating the priority of the link corresponding to the second-level video monitoring management server in this embodiment includes:
analyzing the key information of the server carried in the response signaling of the second-level video monitoring management server;
and calculating and recording the priority of the link corresponding to the second-level video monitoring management server according to the key information and by combining whether the negotiation signaling is successful and the response time.
After the negotiation success and the response time of the negotiation signaling added into the video monitoring management server are determined, the proportion of the negotiation success and the response time of the negotiation signaling in the priority calculation can be improved, and the priority of the corresponding link is reduced under the condition that the establishment of the media stream link fails.
In one embodiment, the priority Y of a link is calculated as follows:
Y＝A*w1+B*w2+C*w3+D*w4+E*w5。
a, B, C, D, E is shown in the following table, and w1, w2, w3, w4 and w5 are corresponding weights.
| Categories | Weight of |
| Signaling success/failure (A) | 40％ |
| Response time (B) | 30％ |
| Network card flow (C) | 10％ |
| CPU utilization rate (D) | 10％ |
| IO occupancy rate (E) | 10％ |
TABLE 1
In table 1, a heavier weight is allocated for whether the negotiation signaling is successful and the response time, in this embodiment, whether the negotiation signaling is successful and the response time, the sum of the weight ratios in calculating the priority of the link corresponding to the second-level video monitoring management server is greater than a set threshold, and a value range of the threshold is determined according to an actual operating environment, for example, the value range is 40% to 80%. When the negotiation signaling is failed and the response time is long, the priority is very low, so that other links with high priority are selected for negotiation, and a media stream link is established. The link priority is not recalculated until the corresponding link is restored, or the link priority corresponding to the link is set to a default value.
After removing key information in the response information of the video monitoring management server C, the SDN2 constructs a response signaling and returns the response signaling to the video monitoring management server B; the video monitoring management server B constructs a response signaling carrying the key information of the server and returns the response signaling to the SDN 1; SDN1 calculates the link priority of B and makes a good record.
After media stream links are established for multiple times, if each path is assumed to go once (ABC/ABE/ADC/ADE), a link priority record is formed in SDN1/SDN2/SDN3, and an optimal path is intelligently selected in the subsequent media stream link establishment process, so that the media stream links are quickly and stably established.
It is easy to understand that after a request for establishing a media link is initiated by a higher-level video monitoring management server, a negotiation signaling is first sent to an SDN between nodes of the higher-level video monitoring management server and the lower-level video monitoring management server, the SDN selects a media stream link, and the negotiation signaling is sent to a corresponding video monitoring management server according to link information.
And after receiving the media stream link establishment request negotiation signaling and interacting signaling with the front-end equipment camera, the video monitoring management server at the lowest level returns a response signaling, and the response signaling carries key information capable of identifying the smooth condition of the video monitoring management server network.
And the SDN equipment performs calculation according to the key information carried in the response signaling, judges the network condition of the link and updates the link priority.
After links are established for multiple times, a complete link priority record can be formed in the SDN to express the network conditions of all levels of video monitoring management platforms, and after a media stream link establishment request is received next time, the SDN can automatically select an optimal link according to the recorded link priority to establish a media stream link, so that intelligent link selection is realized.
When a link is not good, the corresponding priority level is changed to be low through updating, so that a link with a high priority level is directly selected, namely other unobstructed links are intelligently selected when the establishment of the media stream link fails, and the effect of ensuring the successful establishment of the media stream link to the greatest extent under the condition that a user cannot perceive the successful establishment is achieved.
It should be understood that, although the steps in the flowchart of fig. 2 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 2 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
In an embodiment, the present application further provides an SDN-based media streaming link intelligent selection apparatus for intelligently selecting a media streaming link in a video monitoring system, where the video monitoring system includes a first-level video monitoring management server and a second-level video monitoring management server, an SDN device is disposed between the first-level video monitoring management server and the second-level video monitoring management server, and the SDN-based media streaming link intelligent selection apparatus is applied to the SDN device, and includes:
the link information receiving module is used for receiving link information between the first-level video monitoring management server and the second-level video monitoring management server;
the link selection module is used for receiving a negotiation signaling initiated by the first-level video monitoring management server for establishing a media stream link request, selecting a link with a high priority according to the priority of each link in the link information, and sending the negotiation signaling to the corresponding second-level video monitoring management server through the selected link;
and the link priority updating module is used for receiving a response signaling carrying the key information of the server by the second-level video monitoring management server and updating the priority of the link corresponding to the second-level video monitoring management server of the server.
Furthermore, the priority of each link is initially set by the first-level video monitoring management server. Alternatively, the priority of each link is initially set by the SDN device.
Specific limitations on the SDN-based media stream link intelligent selection apparatus may refer to the above limitations on the SDN-based media stream link intelligent selection method, and are not described herein again. The modules in the SDN-based media stream link intelligent selection apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In some specific embodiments, the priority of each link is initially set by the first-level video surveillance management server. Alternatively, the priority of each link is initially set by the SDN device.
In some specific embodiments, the link priority updating module, when receiving a response signaling that the second-level video monitoring management server carries key information of the server and updating the priority of the link corresponding to the second-level video monitoring management server, executes the following operations:
analyzing the key information of the server carried in the response signaling of the second-level video monitoring management server;
and calculating and recording the priority of the link corresponding to the second-level video monitoring management server according to the key information and by combining whether the negotiation signaling is successful and the response time.
In some embodiments, whether the negotiation signaling is successful or not and the response time are determined, and the sum of the weight ratios in calculating the priority of the link corresponding to the second-level video monitoring management server is greater than a set threshold.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An SDN-based intelligent media streaming link selection method is used for intelligent selection of media streaming links in a video monitoring system, the video monitoring system comprises a first-level video monitoring management server and a second-level video monitoring management server, an SDN device is arranged between the first-level video monitoring management server and the second-level video monitoring management server, and the SDN-based intelligent media streaming link selection method is applied to the SDN device and comprises the following steps:
receiving link information between a first-level video monitoring management server and a second-level video monitoring management server;
receiving a negotiation signaling initiated by a first-level video monitoring management server to establish a media stream link request, selecting a link with a high priority according to the priority of each link in link information, and sending the negotiation signaling to a corresponding second-level video monitoring management server through the selected link;
and receiving a response signaling carrying the key information of the server by the second-level video monitoring management server, and updating the priority of the link corresponding to the second-level video monitoring management server of the server.
2. The SDN-based intelligent selection method for media stream links according to claim 1, wherein the priority of each link is initially set by a first-level video surveillance management server.
3. The SDN-based intelligent selection method for media stream links according to claim 1, wherein the priority of each link is initially set by an SDN device.
4. The SDN-based intelligent selection method for media stream links according to claim 1, wherein the receiving a response signaling that the second-level video monitoring management server carries key information of the second-level video monitoring management server, and updating the priority of a link corresponding to the second-level video monitoring management server includes:
analyzing the key information of the server carried in the response signaling of the second-level video monitoring management server;
and calculating and recording the priority of the link corresponding to the second-level video monitoring management server according to the key information and by combining whether the negotiation signaling is successful and the response time.
5. The SDN-based intelligent selection method for media stream links according to claim 4, wherein the negotiation signaling is successful or not, the response time is determined, and the sum of the weight ratios in calculating the priority of the corresponding link of the second-level video monitoring management server is greater than a set threshold.
6. An SDN-based media stream link intelligent selection device for intelligent selection of a media stream link in a video monitoring system, wherein the video monitoring system comprises a first-level video monitoring management server and a second-level video monitoring management server, an SDN device is arranged between the first-level video monitoring management server and the second-level video monitoring management server, and the SDN-based media stream link intelligent selection device is applied to the SDN device and comprises:
the link information receiving module is used for receiving link information between the first-level video monitoring management server and the second-level video monitoring management server;
the link selection module is used for receiving a negotiation signaling initiated by the first-level video monitoring management server for establishing a media stream link request, selecting a link with a high priority according to the priority of each link in the link information, and sending the negotiation signaling to the corresponding second-level video monitoring management server through the selected link;
and the link priority updating module is used for receiving a response signaling carrying the key information of the server by the second-level video monitoring management server and updating the priority of the link corresponding to the second-level video monitoring management server of the server.
7. The SDN-based media stream link intelligent selection apparatus of claim 6, wherein the priority of each link is initially set by a first-level video surveillance management server.
8. The SDN-based intelligent media stream link selection apparatus as recited in claim 6, wherein the priority of each link is initially set by an SDN device.
9. The SDN-based intelligent selection device for media stream links according to claim 6, wherein the link priority update module, when receiving a response signaling that the second-level video monitoring management server carries key information of the server and updating the priority of a link corresponding to the second-level video monitoring management server, performs the following operations:
analyzing the key information of the server carried in the response signaling of the second-level video monitoring management server;
and calculating and recording the priority of the link corresponding to the second-level video monitoring management server according to the key information and by combining whether the negotiation signaling is successful and the response time.
10. The SDN-based intelligent selection apparatus for media streaming link according to claim 9, wherein the negotiation signaling is successful or not, and response time, and a sum of weight ratios in calculating priorities of corresponding links of the second-level video monitoring management server is greater than a set threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303994.7A CN111836003B (en) | 2019-04-16 | 2019-04-16 | SDN-based intelligent media stream link selection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303994.7A CN111836003B (en) | 2019-04-16 | 2019-04-16 | SDN-based intelligent media stream link selection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111836003A true CN111836003A (en) | 2020-10-27 |
| CN111836003B CN111836003B (en) | 2022-12-23 |
Family
ID=72914752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910303994.7A Active CN111836003B (en) | 2019-04-16 | 2019-04-16 | SDN-based intelligent media stream link selection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111836003B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428031A (en) * | 2013-08-05 | 2013-12-04 | 浙江大学 | Inter-domain link fast failure recovery method based on software defined network |
| CN103475947A (en) * | 2013-09-13 | 2013-12-25 | 中国联合网络通信集团有限公司 | Streaming media distribution system and method based on software defined network |
| CN103491353A (en) * | 2013-10-09 | 2014-01-01 | 南京怀业信息技术有限公司 | Method for video-monitoring streaming media transmission optimal path under multistage multi-domain network |
| CN103916634A (en) * | 2014-04-04 | 2014-07-09 | 浙江宇视科技有限公司 | Video on demand method based on openflow control |
| CN104158753A (en) * | 2014-06-12 | 2014-11-19 | 南京工程学院 | Dynamic flow dispatch method and system based on software definition network |
| CN104168191A (en) * | 2014-08-31 | 2014-11-26 | 西安电子科技大学 | Routing method for meeting multiple constrained parameter conditions in large-scale software-defined network |
| CN104320637A (en) * | 2014-11-21 | 2015-01-28 | 浙江宇视科技有限公司 | Video monitoring system and method for video monitoring system to select media stream sending path |
| CN105656654A (en) * | 2014-11-14 | 2016-06-08 | 中兴通讯股份有限公司 | Path obtaining method, multi-domain controller, cross-domain business protection method and system |
| CN106130925A (en) * | 2016-08-26 | 2016-11-16 | 广州西麦科技股份有限公司 | Link scheduling method, equipment and the system of a kind of SDN |
| CN106375214A (en) * | 2016-11-10 | 2017-02-01 | 北京邮电大学 | SDN-based tiered routing path determination method and device |
| CN106385641A (en) * | 2016-10-08 | 2017-02-08 | 中山大学 | SDN-based live broadcast video streaming media distribution method |
| CN107770065A (en) * | 2017-10-10 | 2018-03-06 | 山东大学 | A kind of streaming media path selecting system based on software defined network SDN |
-
2019
- 2019-04-16 CN CN201910303994.7A patent/CN111836003B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428031A (en) * | 2013-08-05 | 2013-12-04 | 浙江大学 | Inter-domain link fast failure recovery method based on software defined network |
| CN103475947A (en) * | 2013-09-13 | 2013-12-25 | 中国联合网络通信集团有限公司 | Streaming media distribution system and method based on software defined network |
| CN103491353A (en) * | 2013-10-09 | 2014-01-01 | 南京怀业信息技术有限公司 | Method for video-monitoring streaming media transmission optimal path under multistage multi-domain network |
| CN103916634A (en) * | 2014-04-04 | 2014-07-09 | 浙江宇视科技有限公司 | Video on demand method based on openflow control |
| CN104158753A (en) * | 2014-06-12 | 2014-11-19 | 南京工程学院 | Dynamic flow dispatch method and system based on software definition network |
| CN104168191A (en) * | 2014-08-31 | 2014-11-26 | 西安电子科技大学 | Routing method for meeting multiple constrained parameter conditions in large-scale software-defined network |
| CN105656654A (en) * | 2014-11-14 | 2016-06-08 | 中兴通讯股份有限公司 | Path obtaining method, multi-domain controller, cross-domain business protection method and system |
| CN104320637A (en) * | 2014-11-21 | 2015-01-28 | 浙江宇视科技有限公司 | Video monitoring system and method for video monitoring system to select media stream sending path |
| CN106130925A (en) * | 2016-08-26 | 2016-11-16 | 广州西麦科技股份有限公司 | Link scheduling method, equipment and the system of a kind of SDN |
| CN106385641A (en) * | 2016-10-08 | 2017-02-08 | 中山大学 | SDN-based live broadcast video streaming media distribution method |
| CN106375214A (en) * | 2016-11-10 | 2017-02-01 | 北京邮电大学 | SDN-based tiered routing path determination method and device |
| CN107770065A (en) * | 2017-10-10 | 2018-03-06 | 山东大学 | A kind of streaming media path selecting system based on software defined network SDN |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111836003B (en) | 2022-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11570262B2 (en) | Methods, systems, and computer readable media for rank processing for network function selection | |
| CN102318265B (en) | Network node and method for controlling resources in a communication network | |
| CN101945278B (en) | Video self-adaptive transcoding method and system | |
| CN101160805B (en) | Resource management equipment, access system and method for ensuring multi-service service quality | |
| CN111432158B (en) | Load balancing method and device for media nodes, storage medium and electronic device | |
| CN109660593B (en) | Internet of things platform access management method, device and system | |
| CN101437175B (en) | Method, apparatus and system for processing disaster-tolerating switch | |
| CN112764920A (en) | Edge application deployment method, device, equipment and storage medium | |
| CN1809051A (en) | Processing method against device overload in IP telecom network | |
| EP3742682A1 (en) | Peer-to-peer rerouting method and device | |
| CN111836003B (en) | SDN-based intelligent media stream link selection method and device | |
| CN111654526A (en) | Load balancing method and system for streaming media server | |
| CN112055175A (en) | Video partition-based negotiation transmission method, electronic device and recording medium | |
| CN103856489A (en) | Achieving method and device for preventing replay attack | |
| CN112260946B (en) | Link failure processing method and device, terminal equipment and storage medium | |
| RU2522995C2 (en) | Method and apparatus for creating peer-to-peer group in peer-to-peer application and method of using peer-to-peer group | |
| CN111294553B (en) | Method, device, equipment and storage medium for processing video monitoring service signaling | |
| JP4143766B2 (en) | Congestion control device, congestion control method and program | |
| CN1332531C (en) | A method for dynamically adjusting system service performance on service management point | |
| WO2017166874A1 (en) | Baseband board selection method and device | |
| CN111698454B (en) | Inter-domain resource pushing method and device for dynamically selecting optimal path | |
| CN110011979A (en) | Net hot standby implementation method and device more | |
| US20240039823A1 (en) | Network repository function overload protection | |
| CN102546995A (en) | Data distribution processing method and device | |
| CN115378959A (en) | Data transmission method, device, electronic equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |